Castor

Castor

Castor is the second brightest star in the constellation Gemini and one of the brightest stars in the night sky. It is still know as Alpha Geminorum although it is not as bright as Beta Geminorum. 

http://astropixels.com/stars/Castor-01.html

Star: Alpha Geminorum

Location:
    -Right Ascension: 07h 34m 35.863s
    -Declination: +31° 53′ 17.79″

Chemical components: Hydrogen

Spectrum analysis of most abundant chemical (Hydrogen)

http://astro.u-strasbg.fr/~koppen/discharge/

Stellar Classification: A1 V

https://en.wikipedia.org/wiki/Castor_(star)

Sources:

Astropixels. (n.d.). Retrieved October 2, 2015, from http://astropixels.com/

Castor. Retrieved October 2, 2015, from https://www.wikipedia.org/Castor

Spectra of Gas Discharges. (n.d.). Retrieved October 2, 2015, from http://astro.u-strasbg.fr/~koppen/discharge/

 List of brightest stars. (n.d.). Retrieved October 2, 2015, from http://www.astronoo.com/en/brightest-stars.html